FIELD: nanotechnology.
SUBSTANCE: invention relates to the field of nanomaterials. A method is proposed for production of fluorescent labels based on biocompatible and biodegradable nanoparticles of silicon for application in vivo by the reaction of disproportionation of silicon monoxide at a temperature of 950°C in air atmosphere followed by interaction of the resulting nanoparticles of silicon with dimethylsulfoxide. The proposed method enables to produce two outfits of nanoparticles with the size of 2.0-2.5 nm with photoluminescence peaks at 676 nm and 774 nm.
EFFECT: production of hydrophilic biocompatible and biodegradable fluorescent labels of nanocrystalline silicon, having sustained bright luminescence and narrow function of size distribution, resistant to high temperatures (up to 220°C) without the use of toxic substances in the process of their synthesis; resulting nanoparticles are applicable as labels in vivo in imaging of deep-seated tissues and organs.
1 cl, 3 dwg
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Authors
Dates
2013-08-27—Published
2012-03-02—Filed